#include "db.h"
#include "usermodel.hpp"

#include <iostream>
using namespace std;

//user表的增加方法
bool UserModel::insert(User &user){
    //1。组装sql语句
    char sql[1024] = {0};
    sprintf(sql, "insert into User(name,password,state) values('%s','%s','%s')", 
        user.getName().c_str(), user.getPwd().c_str(),user.getState().c_str());

    MySQL mysql;
    if(mysql.connect()){
        if(mysql.update(sql)){
            //获取插入成功的用户数据生成的主键id
            user.setId(mysql_insert_id(mysql.getConnection()));
            return true;
        }
    }
    return false;
}

//根据用户号码查询用户信息
User UserModel::query(int id){
     //1。组装sql语句
    char sql[1024] = {0};
    sprintf(sql,"select * from User where id = %d", id);

    MySQL mysql;
    if(mysql.connect()){
        MYSQL_RES *res= mysql.query(sql);
        if(res != nullptr){
            MYSQL_ROW row = mysql_fetch_row(res);
            if(row != nullptr){
                User user;
                user.setId(atoi(row[0]));
                user.setName(row[1]);
                user.setPwd(row[2]);
                user.setState(row[3]);
                mysql_free_result(res);
                return user;
            }
        }
    }
    return User();
}

//更新用户状态信息
bool UserModel::updateState(User user){
    //1. 组装sql语句
    char sql[1024] = {0};
    sprintf(sql,"update User set state = '%s' where id = %d", user.getState().c_str(), user.getId());

    MySQL mysql;
    if(mysql.connect()){
        if(mysql.update(sql)){
            return true;
        }
    }
    return false;
}

//重置用户的状态信息
void UserModel::resetState(){
    //1. 组装sql语句
    char sql[1024] = "update User set state = 'offline' where state = 'online'";

    MySQL mysql;
    if(mysql.connect()){
        mysql.update(sql);
    }
}


